jonkeane commented on a change in pull request #8579:
URL: https://github.com/apache/arrow/pull/8579#discussion_r517366041
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File path: r/R/table.R
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@@ -254,6 +257,49 @@ names.Table <- function(x) x$ColumnNames()
#' @export
`[[.Table` <- `[[.RecordBatch`
+#' @export
+`[[<-.Table` <- function(x, i, value) {
+ if (is.null(value)) {
+ if (is.character(i)) {
+ i <- match(i, names(x)) - 1L
+ }
+ x <- x$RemoveColumn(i)
+ } else {
+ if (!is.character(i)) {
+ # get or create a/the column name
+ if (i <= ncol(x)) {
Review comment:
I went looking for a function call to `num_columns()` and should have
looked for an active binding, oops!
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